Shelley Rae Saunders (1950–2008)

Rae of the Arctic.

ANYoNE WHO WAS asked to name a nineteenth-century doctor who is remembered more for his geographical explorations than his medical activities would think first of David Livingstone. If asked to mention a second he would probably find it difficult. Yet there are at least two other medical men, both of them Scots, who in the Arctic contributed as much to geographical knowledge as Livingstone did ...

Dr John Rae

recognition is made also of Bright's discoveries in liver disease and neurology. But the reader gains little understanding of Bright's work in the context of changing ideas of disease, chemistry, and medical investigation of the first half of the nineteenth century. We do not learn enough about what, if any, skills and ideas Bright brought back from his European excursions. It is when discussin...

CHALLENGING CONVENTIONAL WISDOM & GENDER WORK Shelley

Generalized Birnbaum-Saunders Distribution

The two-parameter Birnbaum–Saunders (BS) distribution was originally proposed as a failure time distribution for fatigue failure caused under cyclic loading. BS model is a positively skewed statistical distribution which has received great attention in recent decades. Several extensions of this distribution with various degrees of skewness, kurtosis and modality are considered. In particular, a...

Birnbaum-Saunders nonlinear regression models

We introduce, for the first time, a new class of Birnbaum–Saunders nonlinear regression models potentially useful in lifetime data analysis. The class generalizes the regression model described by Rieck and Nedelman [1991, A log-linear model for the Birnbaum–Saunders distribution, Technometrics, 33, 51–60]. We discuss maximum likelihood estimation for the parameters of the model, and derive clo...